Atlas Sound AT100-PARM
100W Rackmount Attenuator with Priority Relay & 3Db Steps


Atlas Sound's high-quality auto transformer AT100-PARM provides the advantages of excellent frequency response, low insertion loss and reliable performance for volume control application in 25 and 70.7-volt systems.

Attenuation is accomplished in ten make before break steps plus positive off position.  (No stop between maximum and off position to prevent switch damage).  Contacts are silver-plated for noise-free operation.

Features a removable terminal block.  Includes screen printed dial scale and a skirted black knob.


  • Attractive matte black polycarbonate dial scale overlay with adhesive backing replaces the mounting plate. Includes skirted black knob
  • Priority paging feature by-passes the effect of the attenuator
  • Rack Mount Attenuator for Mounting on to Blank Panels in Equipment Cabinets
  • The SPDT relay is operated with 24 VDC at 10mA
  • UL Listed


  • Dimensions: 2-3/4" H x 1-3/4" W x 2-1/2" D (6.985 x 4.445 x 6.35 cm)
  • Shipping Weight: 1.50 lb (0.68 kg)
  • Power Rating: 100W
  • Total Attenuation: 27dB
  • UL Listed/Standard: 813, 2043
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